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Geo 101 final review
Coastlines and Ocean Basins
Question | Answer |
---|---|
Where does most volcanic activity on the sea floor take place? | Mid-ocean ridges |
Key to shoreline dynamics | Wind motion |
Depend on wind speed, duration, and distance | Wind waves |
Longshore currents | Parallel to the shoreline |
Transport of sediment, close to the shoreline, mainly in the swash zone | Longshore drift |
Currents that are perpendicular to the shoreline | Rip currents |
Occur when the solar and lunar tides are in phase | Spring tides |
Occur when the solar and lunar tides are out of phase | Neap tides |
The rate at which sand is supplied to the beach, versus the rate at which it is being removed is known as what? | The sand budget |
A broad platform extending from the shoreline to the continental slope | Continental shelf |
Dissected by submarine canyons and formed by submarine landslides | Continental slope |
Extends beyond the continental rise typically 4-6km below sea level; flattest surface on the Earth | Abyssal plain |
How deep is the deepest part of the ocean? | 10km deep |